French Onion Grilled Cheese Sandwich
This rich and savory sandwich combines caramelized onions with melted Gruyère and mozzarella cheese for a gourmet twist on a classic grilled cheese.
Ingredients
For the Sandwich
- 4 slices slices of bread Choose a sturdy, rustic bread like sourdough or artisan loaf.
- 2 tablespoons butter Use quality butter for better flavor.
- 2 large onions, thinly sliced Sweet onions are preferable for caramelization.
- 1 cup shredded Gruyère cheese Can be substituted with Swiss cheese if necessary.
- 1 cup shredded mozzarella cheese Provides creaminess to the sandwich.
- to taste Salt and pepper
- 1 teaspoon thyme (optional) Enhances the flavor of the caramelized onions.
Instructions
Caramelizing Onions
- Melt 1 tablespoon of butter in a skillet over medium heat.
- Add the sliced onions and cook, stirring occasionally, for about 15-20 minutes or until caramelized.
- Season with salt, pepper, and thyme if using.
Assembling and Cooking the Sandwich
- In another skillet, heat the remaining butter over medium heat.
- Assemble the sandwiches by layering caramelized onions and the cheese between two slices of bread.
- Cook each sandwich in the skillet until the bread is golden brown and the cheese is melted, about 3-4 minutes on each side.
- Serve warm and enjoy!
Notes
For best flavor, don't rush the caramelization process. You can customize the sandwich by adding ingredients like bacon or sautéed mushrooms.